Electrical Circuits & Heat Transfer

• Current is measured by an ammeter, which has low resistance to minimize voltage drop across it.
• Ammeter - An instrument that measures current
• Parallel Circuit - A circuit that has a number of branches, each with its own components
• Current - The flow of electrons (charge) measured in amperes
• Voltage - a measure of the current of energy provided to chargers or used by them; measured in volts or J/C
• Resistance - A measure of opposition to the flow of current; measured in Ohms
• Series Circuit - A circuit with all its components arranged in a line; forming a single loop of only one current path
• Conduction is heat particles moving through solids
• Convection is heat particles moving through liquids & gases
• Radiation is the heat moving through particles
• A measure of the average kinetic energy of particles in a substance that results in how hot or cold the substance is called temperature
• This is a... lamp

  
• This is a ... Battery

  
• This is a ... wire

  
• This is a ... Closed switch

  
• This is a ... Motor

  
• This is a ... Ammeter

  
• This is a ... Buzzer

  
• This is a ... Cell

  
• This is a ... Voltmeter

  
• This is a ... Open switch

  
• This is a ... Lamp

  
• This is a ... Resistor

  
• This is a ... fuse

  
• a series circuit is a circuit in which electrical current can follow only one path
• A parallel circuit is a circuit in which electrical current has more than one path to follow
• If you switched off the lights in your room, but the lamp in your living room is still on. It means that it is a parallel circuit
• True or false?

  The electricity flows from (-) Negative to (+) Positive.

  True
• Conductors allow electricity to flow through the circuit
• What circuit is a parallel circuit?

  A

  
• Current = Voltage / Resistance (Ohms)
• Voltage = Current x Resistance (Ohms)
• Resistance = Voltage / Current (Amps)
• Heat transfer occurs when energy moves from one object to another.
• Electricity can be transferred by conduction, convection, radiation.
• plastic is a insulator
• a series circuit is when all components flow on the same wire